Nathan,
Early in a game you go with a standard defense that prioritizes getting an out at first base.
You can easily learn that by googling.
Late in a close game you might go with a defense that increases the odds to get the lead runner out (wheel play), but also increases the risk that you'll get nobody out, or throw the ball away.
You can easily learn that by googling.
What you won't learn by googling is this: The true measure of the value of a baseball play is,
What would you really do in a game that is late and close and your season will end if you lose?
For example: Wheel play: Do you trust it enough (with the personnel you have, and the practice you've put in) to use it when your season is on the line?